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Teddy Heinen

CSAW Quals CTF 2021

I competed in CSAW Quals with ret2rev. We ended in 88th place overall and 17th in the qualifying brackets (US Students). I've included writeups for the challenges I solved and thought were interesting enough to write about.

corCTF 2021

I competed with ret2rev and placed in 98th place! I wrote these all in the last 20 minutes of the ctf and went to go get food so it's a little brief.

m0lecon 2021 Teaser

I competed in the teaser solo, ending up in 23rd place (dropped 13 places while sleeping rip). I solved the majority of the pwn challenges (fortran :( ) and have included solve scripts and brief explanations for them. Wasn't really feeling like in-depth writeups, but it should be sufficient to get an idea of the solution and you're welcome to contact me if you have questions.

picoMini by redpwn

I competed in picoCTF's 2021 mini-competition with the Texas A&M Cybersecurity Club as ret2rev and we placed in sixth place. I worked on the binary exploitation challenges and solved five of the six total. Fun challenges, glad I competed. Writeups are below.

Tenable CTF 2020

Tenable (the company who makes Nessus) ran a capture the flag over the weekend of February 19th. I played for a few hours saturday night and pretty much cleared out the code category. I've been a little starved for programming recently so I went straight for it haha. Overall I'd say it was a pretty solid CTF -- I didn't devote the time needed to scope out every challenge but I had a fun time while I was playing.

HTB Uni CTF 2020

A couple weeks back I competed in HackTheBox's university CTF with a few other students from the Texas A&M Cybersecurity Club. We placed in 37th place out of a few hundred.

Advent of Code 2020

Advent of Code is a yearly coding event which takes place in December. Every day we get a new short programming exercise with a cute christmas themed story. Historically I've had a lot of fun solving them but the difficulty increases with every day and i've never finished. I'm pretty invested in finishing this year so we'll see how far I get! I'll update this every few days or so once i'm satisfied with my solution but if you'd like to see up-to-date information all of my solutions are on GitHub